Question

1 ) Calcule as somas algébricas:
a) (+ 10 ) +(-7)+(-5) =
b) (+3) -( + 4) – ( + 2) =

Answer 1

a) (10) + (-7) + (-5) = 10 - 7 - 5 = -2

b) (3) - (4) - (2) = 3 - 4 - 2 = -3